Schorl Crystal Group – NERS 028

Double /multi-terminated schorl crystal group

Measurements:  63 x 32 x 27 mm  

Description:  A double / multi-terminated group of schorl crystals with interesting growth patterns. There are bits of goethite and very minute bits of quartz on the surface. 

The specimen has a number of pressure marks, thin flaws and nicks.

Weight of Specimen:  78.2 g   

Chemical Composition:  NaFe2+3Al6Si6O18(BO3)3(OH)4  (schorl)

Hardness on Mohs Scale:  7.5  (schorl)
Location:  Erongo Mountains, Erongo Region, Namibia.

Specimen Code:  NERS 028


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